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Classification Introduction
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American Standard Pulley

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  • American Standard Pulley
  • American Standard Pulley
  • American Standard Pulley
  • American Standard Pulley
  • American Standard Pulley

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SPHERICAL PLAIN BEARING

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Product Characteristics

 1.Complete standard system, high interchangeability

 Compliant with ANSI/ASA B15.1, ANSI/RMA IP-20/IP-22. Two main series: Classical V-belt (A/B/C/D/E) and Narrow V-belt (3V/5V/8V). Unified groove angle (34°–38°), reference diameter, bore and keyway   dimensions; same specifications are globally interchangeable.

2.Narrow V-belt design, high transmission efficiency

3V/5V/8V feature narrow wedge grooves with high contact pressure and friction. 10%–15% higher efficiency than classical V-belts. Ideal for high-speed, high-power, compact applications (air compressors, fans, construction machinery).

3.QD bushing system, easy installation & accurate alignment

Standard QD (Quick Disconnect) taper bushing with split flange and taper-lock design. No shaft shoulder/keyway required; shoulderless mounting, reusable, precise alignment, reducing shaft/hub damage.

4.High dynamic balance, smooth & quiet operation

Factory dynamic balance G6.3 (G2.5 for high precision); face runout ≤0.1mm. Cast iron provides inherent damping for low vibration/noise, ideal for motors, pumps, precision machinery.

5.Balanced strength & wear resistance, long service life

Thickened rim, reinforced hub, precision-machined groove surface (Ra≤3.2μm) for wear resistance, no chipping, and deformation/crack resistance. Matched with American-standard belts, belt life extended by 20%–30%.


Common Material Classification & Introduction

1. Gray Cast Iron HT200/HT250 (Mainstream General Type)

Features: Moderate hardness, easy processing, good shock absorption and stable dimension.Advantages: High cost performance, low noise, suitable for mass production.Application: Fans, water pumps, air compressors, agricultural machinery and other general machinery.Note: Weak impact resistance; anti-rust treatment required in humid environments.

2. 45# Carbon Steel (Precision Reinforced Type)

Features: High strength and good toughness; wear resistance can be improved by quenching; high precision.Advantages: Strong load capacity, not easy to deform, suitable for medium-high speed and medium-heavy load.Application: Machine tools, printing, packaging and other industrial transmission equipment.Note: Prone to rust; surface anti-rust treatment is required.

3. Aluminum Alloy 6061/6063 (Lightweight Type)

Features: Light weight, low inertia, available for anodizing, high precision.Advantages: Stable high-speed operation, sensitive start-up, oxidation resistance.Application: Small automation equipment, office equipment, high-speed light-load occasions.Note: Not suitable for heavy load, high torque and impact working conditions.

4. Stainless Steel 304/316 (Anti-Corrosion Special Type)

Features: Rust-proof, corrosion and acid-alkali resistant, high sanitary standard.Advantages: Maintenance-free, rustproof, suitable for harsh environments.Application: Food, medical, chemical and seaside outdoor equipment.Note: High cost, only applicable for light and medium load.

5. Ductile Iron QT500/QT600 (High-Strength Heavy-Duty Type)

Features: Much higher toughness and tensile strength than ordinary cast iron, wear and impact resistant.Advantages: Large load capacity, vibration resistance, stable operation under heavy load.Application: Mining, heavy industry, heavy-duty conveying and other severe working conditions.Note: High cost; aging treatment required to prevent processing deformation.

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FAQ：

Q: How to solve loud noise and abnormal sound during pulley operation?
A:
  1. There are burrs and uneven wear on the groove surface; just polish it smooth.
  2. The belt is loose or aged; adjust the tension or replace the belt.
  3. The two pulleys are installed eccentrically causing heavy vibration; recalibrate the alignment.


Q: How to prevent pulleys from getting rusty after a period of use?A:
  1. Cast iron and carbon steel pulleys should be treated with galvanizing, blackening or anti-rust oil.
  2. Avoid storing or using them in humid and rainy environments.
  3. Regularly clean surface dust and water stains for daily maintenance.


Product Characteristics

 1.Complete standard system, high interchangeability

 Compliant with ANSI/ASA B15.1, ANSI/RMA IP-20/IP-22. Two main series: Classical V-belt (A/B/C/D/E) and Narrow V-belt (3V/5V/8V). Unified groove angle (34°–38°), reference diameter, bore and keyway   dimensions; same specifications are globally interchangeable.

2.Narrow V-belt design, high transmission efficiency

3V/5V/8V feature narrow wedge grooves with high contact pressure and friction. 10%–15% higher efficiency than classical V-belts. Ideal for high-speed, high-power, compact applications (air compressors, fans, construction machinery).

3.QD bushing system, easy installation & accurate alignment

Standard QD (Quick Disconnect) taper bushing with split flange and taper-lock design. No shaft shoulder/keyway required; shoulderless mounting, reusable, precise alignment, reducing shaft/hub damage.

4.High dynamic balance, smooth & quiet operation

Factory dynamic balance G6.3 (G2.5 for high precision); face runout ≤0.1mm. Cast iron provides inherent damping for low vibration/noise, ideal for motors, pumps, precision machinery.

5.Balanced strength & wear resistance, long service life

Thickened rim, reinforced hub, precision-machined groove surface (Ra≤3.2μm) for wear resistance, no chipping, and deformation/crack resistance. Matched with American-standard belts, belt life extended by 20%–30%.


Common Material Classification & Introduction

1. Gray Cast Iron HT200/HT250 (Mainstream General Type)

Features: Moderate hardness, easy processing, good shock absorption and stable dimension.Advantages: High cost performance, low noise, suitable for mass production.Application: Fans, water pumps, air compressors, agricultural machinery and other general machinery.Note: Weak impact resistance; anti-rust treatment required in humid environments.

2. 45# Carbon Steel (Precision Reinforced Type)

Features: High strength and good toughness; wear resistance can be improved by quenching; high precision.Advantages: Strong load capacity, not easy to deform, suitable for medium-high speed and medium-heavy load.Application: Machine tools, printing, packaging and other industrial transmission equipment.Note: Prone to rust; surface anti-rust treatment is required.

3. Aluminum Alloy 6061/6063 (Lightweight Type)

Features: Light weight, low inertia, available for anodizing, high precision.Advantages: Stable high-speed operation, sensitive start-up, oxidation resistance.Application: Small automation equipment, office equipment, high-speed light-load occasions.Note: Not suitable for heavy load, high torque and impact working conditions.

4. Stainless Steel 304/316 (Anti-Corrosion Special Type)

Features: Rust-proof, corrosion and acid-alkali resistant, high sanitary standard.Advantages: Maintenance-free, rustproof, suitable for harsh environments.Application: Food, medical, chemical and seaside outdoor equipment.Note: High cost, only applicable for light and medium load.

5. Ductile Iron QT500/QT600 (High-Strength Heavy-Duty Type)

Features: Much higher toughness and tensile strength than ordinary cast iron, wear and impact resistant.Advantages: Large load capacity, vibration resistance, stable operation under heavy load.Application: Mining, heavy industry, heavy-duty conveying and other severe working conditions.Note: High cost; aging treatment required to prevent processing deformation.

详情2

公司展示1

公司展示

FAQ：

Q: How to solve loud noise and abnormal sound during pulley operation?
A:
  1. There are burrs and uneven wear on the groove surface; just polish it smooth.
  2. The belt is loose or aged; adjust the tension or replace the belt.
  3. The two pulleys are installed eccentrically causing heavy vibration; recalibrate the alignment.


Q: How to prevent pulleys from getting rusty after a period of use?A:
  1. Cast iron and carbon steel pulleys should be treated with galvanizing, blackening or anti-rust oil.
  2. Avoid storing or using them in humid and rainy environments.
  3. Regularly clean surface dust and water stains for daily maintenance.